Hospital medical staff often works long and hectic hours, without adequate meal or rest breaks in order to provide 24-hour care. This is a concern, as not only the staff's well-being is important to the individual welfare, but it is also vital to the quality and safety of the care their patients receive. The investigators believe that by focusing on physicians and nursing staffs nutrition the investigators will see a positive effect on staff performance and well-being - and thus ultimately possibly on patient safety.